Correct installation of grab bars and shower seats requires that they
be anchored to the wall studs, unless the wall behind the tiles was
reinforced during construction to accomodate future addition of grab
bars.

It is important to have the work done by someone who understands this
and takes no shortcuts. Toggles and other devices that secure a grab
bar to sheetrock behind tile are *unsafe*, because full weight on the
grab bar can cause the sheetrock to fail and the person to fall.

Una